Commissioning
18
4
AVS55.196 board, function Q20 -> heating circuit 3
pump) and check that the pump of heating circuit 3
runs (or the zone 3 valve opens).
7� If the Domestic Hot Water function managed by the K18 unit
is present (EVO models):
Set the parameter to QX4 (QX4 relay output, function
Q3 -> set DHW diverter valve to DHW service) and
check that the diverter valve responds as desired.
8� Now select parameter 7700 again and set it to No test.
9� Select parameter 7804 (Sensor temp BX1) and check its val-
ue (sensor BX1, function B9 -> external temperature).
10� If the Domestic Hot Water function managed by the K18 unit
is present (EVO models):
Select parameter 7806 (Sensor temp BX3) and
check its value (sensor BX3, function B3 -> DHW tank
temperature).
11� If heating circuit 1 is of the mixed type:
Select parameter 7807 (Sensor temp BX4) and check
its value (sensor BX4, function B1 -> Heating circuit 1
outlet temperature).
12� If heating circuit 2 is present and of the mixed type:
Select parameter 7973 (Sensor temp BX31) and
check its value (sensor BX31, function B12 -> Heating
circuit 2 outlet temperature).
To facilitate checking the connection of each tempera-
ture sensor to its input, you can take them out of their
mounts one at a time and heat them up slightly; observe
the variation of the readings on the display to check that
they are hooked up to the right inputs.
Make sure you have restored each sensor to its own
mounting afterwards!
13� If an external request signal is connected for heating circuit
1 (or zone 1), for example, with a thermostat or thermostat
timer:
Select parameter 7844 (Input signal H1) and actuate
the external signal's contact to check that it switches
as expected from open (indicated by - - -) to closed
(indicated by o o o) and back.
NOTE: If no external request signal is present, this test
must indicate closed (o o o), due to the jumper
installed at the factory.
14� If heating circuit 2 (or zone 2) is present, and an external re-
quest is hooked up:
Select parameter 7858 (Input signal H3) and actuate
the external signal's contact to check that it switches as
expected from open (indicated by - - -) to closed (indicat-
ed by o o o) and back.
NOTE: If no external request signal is present, this test
must indicate closed (o o o), due to the jumper
added during installation.
15� If heating circuit 3 (or zone 3) is present, and an external re-
quest is hooked up:
Select parameter 7989 (Input signal H31) and actuate
the external signal's contact to check that it switches as
expected from open (indicated by - - -) to closed (indicat-
ed by o o o) and back.
NOTE: If no external request signal is present, this test
must indicate closed (o o o), due to the jumper
added during installation.
16� Now select parameter 7700 (Relay test) and set it to
Everything off.
17� Select parameter 7724 (Output test UX3) and set it to 50%
18� Access the terminal block of the K18 unit (refer to the "
K18
unit connection to the CSK18 enclosure terminal block
" Fig-
ure in Section 3 of the
Installation manual of the System
Controller
):
Check that the DC voltage between the COM and
DHW terminals is around 17 V.
Check that DC voltage between the 0 and +10 ter-
minals of the K18 CONTROL CABLE terminals group
is 5 V.
Check that the DC voltage between the COM and
RES terminals is around 8�5 V.
19� Select parameter 7700 and set it to QX4.
20� Install a temporary jumper between the EXTERN RESET ter-
minals on the CSK18 enclosure terminal block.
21� Access the terminal block of the K18 unit (refer to the "
K18
unit connection to the CSK18 enclosure terminal block
" Fig-
ure in Section 3 of the
Installation manual of the System
Controller
):
Check the voltage between the COM and DHW termi-
nals again: it should now be around 0 V.
Check the voltage between the COM and RES termi-
nals again: it should now be around 0 V.
22� Set parameter 7700 to No test.
23� Select parameter 7724 (Output test UX3) and set it to - - -
(test deactivated).
24� Press ESC twice to inlet to the start screen.
25� Remove the temporary jumper between the EXTERN RESET
terminals on the CSK18 enclosure terminal block.
4.3.2
Checking the start and stop commands on the
heat pump
Refer to par. 4.3.2 of the system controller Installation manual.
4.3.3
Checking the start and stop commands on the
auxiliary boiler (if present)
Refer to par. 4.3.2 of the system controller Installation manual.
4.4
SETTING THE SYSTEM TO STAND-BY
Refer to par. 4.4 of the system controller Installation manual.
